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ARS Home » Southeast Area » New Orleans, Louisiana » Southern Regional Research Center » Cotton Structure and Quality Research » Research » Research Project #434201

Research Project: Addressing Quality Issues of US Cotton

Location: Cotton Structure and Quality Research

Project Number: 6054-44000-079-14-R
Project Type: Reimbursable Cooperative Agreement

Start Date: Jan 1, 2018
End Date: Dec 31, 2018

There are three objectives to this program of work. The first objective is to complete the development of an image analysis system to detect barré with an emphasis on ease of use by a minimally trained operator. The second objective is to complete an independent round trial of High Volume Instrument (HVI) testing for cotton fiber elongation utilizing calibration routines developed by Texas Tech University including a minimum of 5 locations around the world and utilizing a diverse set of cottons which represent a wide range of elongation values. The third objective is to complete the implementation of the previously developed fiber quality metric, lower half mean length, into commercial software.

With three objectives there are three approaches. The first approach is to improve the previously developed Image Analysis software for the detection of barré by focusing on the user interface. The software has been demonstrated to successfully detect barré however in its current form it requires an operator to make judgements on alignment and cropping of the image. The final version will eliminate the need for the operator to perform these tasks, reducing the skill level needed to operate the software as well as eliminating a source of bias in the results. The approach for the High Volume Instrument (HVI) elongation round trial will be to conclude the current on-going domestic trial by expanding the next round of testing to include international laboratories with HVI lines. Participating HVI units will be calibrated using the materials and methodology developed at Texas Tech University. Results will be analyzed and the efficacy of the elongation calibration will be determined. A precision and bias statement will be generated for both within and between HVI lines. The final objective is the implementation of lower half mean length into commercial software. The approach for this objective is to work with the previously identified collaborator, Textechno, a manufacture of HVI-like instruments. A large number of samples have been tested on the Textechno instrument and the Lower Half Mean Length (LHML) will be manually calculated. The algorithm to automatically calculate the LHML during routine testing will be tested by re-measuring these same samples and comparing the automatically calculated result with the manually calculated result.